ABS multifunctional counters, durable and long-lasting for extended use. The electronic altimeter measures height from 700 to 9000 meters or -2300 to 29500 feet, with a resolution of 1 meter or 3 feet. This digital altimeter can assist in predicting weather conditions over a 12-24 hour period. Weather indication includes symbols for sunny, cloudy, and rainy conditions. Requires 1 AAA battery (not included). Compact size of 90x50x20mm, making it easy to carry during outdoor activities. This multifunctional device measures altitude, temperature, air pressure, and features a compass. Precautions: Avoid use in rain, high humidity, or extreme temperatures (operating temperature: 0°C to 50°C; storage temperature: -20°C to 70°C). Do not expose to perfume, alcohol, detergents, or other corrosive substances. Keep away from concrete, steel structures, or metal surfaces. Features: - Digital altimeter - Color: as shown - Material: ABS - Dimensions: 9x5x2 cm (3.54x1.97x0.79 inches) - Air pressure measurement range: 300 mbar to 1100 mbar (0.1 mbar resolution) - Temperature measurement range: -10°C to +60°C (selectable units in °C or °F), resolution: 0.1 degree Package includes: 1 x Digital altimeter (battery not included)